Shamrock () is an unincorporated town in Creek County, Oklahoma, United States, located on Oklahoma State Highway 16 south of Drumright and west-northwest of Bristow. The population was 65 at the time of the 2020 census. It was named for Shamrock, Illinois (just southeast of Bloomington), the hometown of local store owner, James M. Thomas.
History
thumb|right|Building from 1927, said to be an abandoned auto dealership.
In 1908, James M. Thomas, a native of Shamrock, Illinois, moved to this area and opened a store. He named the post office that he established on July 9, 1910, in honor of his home town. Between 1915 and 1916, the Sapulpa and Oil Field Railroad (later the St. Louis and San Francisco Railway) built a line northward from Depew to Shamrock. The railroad bypassed the town by three quarters of a mile, so the citizens moved their businesses closer to the railroad. The Big Six gambling hall had a one-legged fiddle player who was known to take off his wooden leg and use it as a club to keep order in the place. The editorial in the first issue dated January 1, 1916, summarized the paper's view and intent: "Shamrock is on the map to stay and the Brogue is here to boost for the town. The Brogue will never knock. The mission of a newspaper is to boost for its own home town first, last and all the time, and that is the program that the Brogue will follow."
The board of trustees voted to dissolve the town in June 2010.
Geography
According to the United States Census Bureau, the town has a total area of , all land.